NYC-WTC_000201062

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7832 Filter Type / Filter Area: MCE 385 T.ab Sample #: Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: 0.04496 mnC

GRID BOX: Magnification: 20,000 ■ GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/22/02

Analysis Performed By: ROMAN ^EYSAKHOV

GO. Structure Structure Type Length ID of Structure N or n/ EDS (Nonacb No Coord No F B c M -05 p I <5p >=5|j Ohrys Amphiboie Nonasb Ambig/ND Elements)

Tt^S '2 w • i/:

+—

Struct = > 0.5p > 5: ' Aspect Ratio Grid acceptance: 'A Positive diffraction pattern properties conforming to <50% urdissclved filter, overlapped or folded Totals laboratoy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtappec grid squares <5% F B C M >5p 4= EDS speclrun conforming tc laboratory holes or opaque areas ide,itificalion criteria observed Clirysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart C'ocidolite Ambiguous C = Cluster (>3 Intersections) Anthopnyllite Non-Asbestos Tremolite M = Matrix Actinolite Noii-Identified NS3 = No Structures Detected

CITy_21MC100_011275363

NYC-WTC_000201068